Explore the Family Name Costlow
The meaning of Costlow
Irish: variant of Costello.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Costlow in the United States?
Based on the Decennial U.S. Census data, the popularity of the surname Costlow has seen a slight decrease between 2000 and 2010. In 2000, it was ranked as the 22,011th most popular name in the United States with a count of 1,098 bearers. However, by 2010, Costlow descended to the 22,963rd position, marking a 4.33% change in popularity. Nevertheless, the actual number of individuals bearing the surname rose marginally from 1,098 in 2000 to 1,114 in 2010, showing a growth of 1.46%. The proportion of this surname per 100,000 people also fell by 7.32%, from 0.41 to 0.38.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #22,011 | #22,963 | -4.33% |
| Count | 1,098 | 1,114 | 1.46% |
| Proportion per 100k | 0.41 | 0.38 | -7.32% |
Race and Ethnicity of people with the last name Costlow
In terms of ethnic identity, the Decennial U.S. Census data indicates that there were notable shifts among individuals with the surname Costlow between 2000 and 2010. The majority, about 95.96% in 2010, identified as White, which is a slight decrease from 97.18% in 2000. Meanwhile, the percentage identifying as Hispanic saw a significant increase, rising from 0.64% in 2000 to 1.53% in 2010. The data also shows an increase in those reporting two or more races, up from 0.82% in 2000 to 1.44% in 2010. There was negligible change in those identifying as Asian/Pacific Islander and American Indian and Alaskan Native. The census reported no individuals with the surname Costlow identifying as Black in either year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.18% | 95.96% | -1.26% |
| Hispanic | 0.64% | 1.53% | 139.06% |
| Two or More Races | 0.82% | 1.44% | 75.61% |
| Asian/Pacific Islander | 0% | 0.54% | 0% |
| American Indian and Alaskan Native | 0.55% | 0.54% | -1.82% |
| Black | 0% | 0% | 0% |